linux-kernel - [PATCH 0/5 v2] rcu/exp updates

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Message-ID: <20250314143642.72554-1-frederic@kernel.org>
Date: Fri, 14 Mar 2025 15:36:37 +0100
From: Frederic Weisbecker <frederic@...nel.org>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <frederic@...nel.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Neeraj Upadhyay <neeraj.upadhyay@....com>,
	"Paul E . McKenney" <paulmck@...nel.org>,
	Uladzislau Rezki <urezki@...il.com>,
	Zqiang <qiang.zhang1211@...il.com>,
	rcu <rcu@...r.kernel.org>
Subject: [PATCH 0/5 v2] rcu/exp updates

Hi,

Changes in this version:

* [1/5] Explain why it's fine if a task unblocks between
  sync_exp_reset_tree() and __sync_rcu_exp_select_node_cpus(), per Paul's
  suggestion.

* [3/5] Add Paul's reviewed-by tag

* [4/5] and [5/5] are new patches after discussion.

Frederic Weisbecker (5):
  rcu/exp: Protect against early QS report
  rcu/exp: Remove confusing needless full barrier on task unblock
  rcu/exp: Remove needless CPU up quiescent state report
  rcu/exp: Warn on QS requested on dying CPU
  rcu/exp: Warn on CPU lagging for too long within hotplug IPI's
    blindspot

 kernel/rcu/tree.c        |  8 +++--
 kernel/rcu/tree_exp.h    | 69 +++++++++++-----------------------------
 kernel/rcu/tree_plugin.h |  1 -
 3 files changed, 25 insertions(+), 53 deletions(-)

-- 
2.48.1